.org-tree-container {
    display: inline-block;
    padding: 15px;
}

.org-tree {
    display: table;
    text-align: center;

    &:before, &:after {
        content: '';
        display: table;
    }

    &:after {
        clear: both;
    }
}

.org-tree-node,
.org-tree-node-children {
    position: relative;
    margin: 0;
    padding: 0;
    list-style-type: none;

    &:before, &:after {
        transition: all .35s;
    }
}

.org-tree-node-label {
    position: relative;
    display: inline-block;
    z-index: 1;

    .org-tree-node-label-inner {
        padding: 10px 15px;
        text-align: center;
        border-radius: 3px;
        box-shadow: 0 1px 5px rgba(0, 0, 0, .15);
    }
}

.org-tree-node-btn {
    position: absolute;
    top: 100%;
    left: 50%;
    width: 20px;
    height: 20px;
    z-index: 10;
    margin-left: -10px;
    margin-top: 10px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 50%;
    box-shadow: 0 0 2px rgba(0, 0, 0, .15);
    cursor: pointer;
    transition: all .35s ease;

    &:hover {
        background-color: #e7e8e9;
        transform: scale(1.15);
    }

    &:before, &:after {
        content: '';
        position: absolute;
    }

    &:before {
        top: 50%;
        left: 4px;
        right: 4px;
        height: 0;
        border-top: 1px solid #ccc;
    }

    &:after {
        top: 4px;
        left: 50%;
        bottom: 4px;
        width: 0;
        border-left: 1px solid #ccc;
    }

    &.expanded:after {
        border: none;
    }
}

.org-tree-node {
    padding-top: 20px;
    display: table-cell;
    vertical-align: top;

    &.is-leaf, &.collapsed {
        padding-left: 10px;
        padding-right: 10px;
    }

    &:before, &:after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 50%;
        height: 19px;
    }

    &:after {
        left: 50%;
        border-left: 1px solid #ddd;
    }

    &:not(:first-child):before,
    &:not(:last-child):after {
        border-top: 1px solid #ddd;
    }

}

.collapsable .org-tree-node.collapsed {
    padding-bottom: 30px;

    .org-tree-node-label:after {
        content: '';
        position: absolute;
        top: 100%;
        left: 0;
        width: 50%;
        height: 20px;
        border-right: 1px solid #ddd;
    }
}

.org-tree > .org-tree-node {
    padding-top: 0;

    &:after {
        border-left: 0;
    }
}

.org-tree-node-children {
    padding-top: 20px;
    display: table;

    &:before {
        content: '';
        position: absolute;
        top: 0;
        left: 50%;
        width: 0;
        height: 20px;
        border-left: 1px solid #ddd;
    }

    &:after {
        content: '';
        display: table;
        clear: both;
    }
}

.horizontal {
    .org-tree-node {
        display: table-cell;
        float: none;
        padding-top: 0;
        padding-left: 20px;

        &.is-leaf, &.collapsed {
            padding-top: 10px;
            padding-bottom: 10px;
        }

        &:before, &:after {
            width: 19px;
            height: 50%;
        }

        &:after {
            top: 50%;
            left: 0;
            border-left: 0;
        }

        &:only-child:before {
            top: 1px;
            border-bottom: 1px solid #ddd;
        }

        &:not(:first-child):before,
        &:not(:last-child):after {
            border-top: 0;
            border-left: 1px solid #ddd;
        }

        &:not(:only-child):after {
            border-top: 1px solid #ddd;
        }

        .org-tree-node-inner {
            display: table;
        }

    }

    .org-tree-node-label {
        display: table-cell;
        vertical-align: middle;
    }

    &.collapsable .org-tree-node.collapsed {
        padding-right: 30px;

        .org-tree-node-label:after {
            top: 0;
            left: 100%;
            width: 20px;
            height: 50%;
            border-right: 0;
            border-bottom: 1px solid #ddd;
        }
    }

    .org-tree-node-btn {
        top: 50%;
        left: 100%;
        margin-top: -11px;
        margin-left: 9px;
    }

    & > .org-tree-node:only-child:before {
        border-bottom: 0;
    }

    .org-tree-node-children {
        display: table-cell;
        padding-top: 0;
        padding-left: 20px;

        &:before {
            top: 50%;
            left: 0;
            width: 20px;
            height: 0;
            border-left: 0;
            border-top: 1px solid #ddd;
        }

        &:after {
            display: none;
        }

        & > .org-tree-node {
            display: block;
        }
    }
}
